I know she’s a little high schooler so her immaturity is a given, but still... I can’t. Just cause he doesn’t reciprocate her feelings doesn’t mean she should be rude to him.
I understand her behavior, she approched him with that intention, not because she wanted to be her friend, so break it off in this way makes sense. It's rude, but it hurts her less, obviously there are other ways to do that.